Traction-wheel.



. M. GOODFBLLOWW PRACTICE WHEEL. APPLICATION FILED NOV. 1, 11907.

Patented Dec.29,1)08.

I 51411211410: Moore Guam fellow,

Witnesses MOORE GOODFELLOW, OF COLUMBUS,

TRACTION-WHEEL.

Application filed November 1,1907.

OHIO, ASSIGNOR OF ONE-HALF TO JOSEPH COLUMBUS, OHIO.

Specification of Letters Patent.

0. DYE, OF

Patented Dec. 29, 1908.

Serial No. 400,290.

To all whom it may concern:

Be it known that I, Moons GooDrELLow, a citizen of the .United States,residing at Columbus, in the county of Franklin and. State-of Ohio, haveinvented certain new and useful Improvements in'Traction-Wheels, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.\

This invention relates to traction wheels, and the object of theinvention is to provide a Wheel of this character which will have amaximum amount of tractive power and which will pick up a minimum amountof soil, thus maintaining a uniform traction and preventing thevariation of the diameter of the wheel by accumulations of soil on theperiphery thereof; further, to so construct thewheel as to prevent itsslipping sidewise on uneven ground, thus enabling the machine or vehiclesupported by the wheel to be steered in a straight line; and further, topro-- vide a wheel which will serve to transport the machine on theroad, as well as serving for traction purposes when in the field.

With these objects in view my invention consists in certain novelfeatures of construetion and in certain parts and combinationshereinafter to be described, and then more particularly pointed out inthe claims.

In the accompanying drawings, Figure Us a side elevation of a tractionwheel embody ing my invention; Fig. 2 is a top plan view of. the same;and Fig. 3 is a sectional view, taken on the line m as of Fig. 1.

In these drawings I have illustrated the preferred form of my inventionand have shown the wheel as comprising a rim 1, of a relatively smallwidth and-having a series of turns therein, whereby the rim is caused toI extend first to one side and then to the other side of avertical planeand is thus caused to extend about the wheel in a zigzag line. The angleat which these turns are made and the s ace between the successive turnsmay be a tered to accommodate the same to varying conditions. This rimmay be connected to a suitable hub 2 in any desired manner, butpreferably in the manner here-shown, which consists in providing aplurality of spokes 3, each connected at its inner end to thehub 2 v andhaving itsouter end bifurcated, whereby each spoke is substantiallyY-shaped. The

outer ends of the arms of the bifurcated portion of each spoke are benttoward the rippositesides of the body portion of the spoke and areconnected to the rim 1 on opposite sides of the vertical plane abovementioned and preferably at or turn in said rim is formed.

In the form of wheel herein shown, in which the several parts are castintegral, the spokes are pgovided on their opposite sides with strengteningribs 4 which extend from a point near the inner end of the spoke toa point near the outer ends of the arms thereof, the ribsfollowing thecontour of the spoke. In this form I have also shown the rim asextending on theop osite sides of a verticalv lane taken throug thecenter-of the wheel, ut this arrangement is not essential to the properoperation of the wheel and the position of theivertical plane may bealtered relatively to the center of the wheel to accommodate the same tovarying conditions. The rim is, as stated, of a small width andpreferably has its periphery beveled toward the o posite sides thereof,thus providing a rim w 'ch is substantially V shaped in cross sectionand is therefore of such a construction that little orno soil willadhere thereto. This rim may also be provided on its inner face with aninwardly extendin rib or flange 5, to which the outer ends of t e spokesare connected. Thus it will be seen that I have provided atraction'wheel having a narrow tread which in itself will pick up but avery small amount of soil and that, by bevelin the edges of this treadin the manner descri ed, the amount of dirtwhich will be picked upthereby is still further reduced, thus providing a wheel which will beof a uniform and unvarying diameter and the rim of which will at alltimes positively engage the surface of the ground, thereby insuringuniform traction; also that I have so constructed this wheel that itwill give a maximum amount of tractive power, this result beingaccomplished by extending the rim of the wheel about the same in azigzag line, or in such a manner that the rim extends first to one sideand then to the other side of a strai htv line drawn through the centerof the patl i of the wheel, thus causing that portion of the wheel-,whlch 1s in enga the point where the angle sire to be limited the exacti What I claim as new and desire ed the wheel as to provide m strengthand durability with s 1111 J "Weight.

I wish it to be understood that 1 do not d9" steils bfccn structionshown and described, for clwious modifications will occur tee perscnskilled in the art.

' Having time fully descriiied to secure by Letters Patent, 1sz-- 1. Atraction wheel comprising a rim lmvinge series of turns therein, 3lull), sud eplw rslitycf spokes, each connected st one end ts said huband provided at the other end with a pair of arms, said arms beingconnected to said rim on the opposite sides of a vericel plane.

2. A traction Wheel comprising s 11211, e hub, and a plurality sec es,each ccnnected oneenc tc said hub and Pom in C) invention,

said bifurcation other end bifurcated, the arms of said bifurcationbeing connected to said rim on opposite sides of s vertical plane takentransversely to said hub and on opposite sides of a plane takenlongitudinally to said hub. 3. A. treotionsrheel comprisiw a rim havinga series of turns therein, WTIBIGbV said rim is caused to extend firston one side of a vertical plane and then on the other side thereof, ehub, and a. plurality of spokes, each connected at'its inner end to saidhub and having its outer end bifurcated, the arms of being connected tosaid rim on opposite sides of said vertical plane.

In testimony whereof, I eifii: my signature in presence of twowitnesses.

MOORE GOODFELLOW.

